702.2b Any nonzero amount of combat damage assigned to a creature by a source with deathtouch is considered to be lethal damage, regardless of that creature’s toughness. See rules 510.1c–d.

702.2c A creature with toughness greater than 0 that’s been dealt damage by a source with deathtouch since the last time state-based actions were checked is destroyed as a state-based action. See rule 704.

702.2d The deathtouch rules function no matter what zone an object with deathtouch deals damage from.

702.2e If an object changes zones before an effect causes it to deal damage, its last known information is used to determine whether it had deathtouch.

702.2f Multiple instances of deathtouch on the same object are redundant.[1]

, Sacrifice another creature: You gain life equal to the sacrificed creature's toughness., Sacrifice another creature: Exile target nonland permanent. Activate this ability only if you have at least 10 life more than your starting life total.

Bitterblade Warrior (2)Creature — Jackal Warrior (2/2)You may exert Bitterblade Warrior as it attacks. When you do, it gets +1/+0 and gains deathtouch until end of turn. (An exerted creature won't untap during your next untap step.)

Bone Picker (4)Creature — Bird (3/2)Bone Picker costs less to cast if a creature died this turn.

At the beginning of your upkeep, sacrifice The Gitrog Monster unless you sacrifice a land.
You may play an additional land on each of your turns.
Whenever one or more land cards are put into your graveyard from anywhere, draw a card.